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Barrels

The barrel is one of the most critical parts of your AR-15 - let AT3 Tactical help you find the right barrel for your setup.

Barrels come in a variety of lengths, materials, and designs to serve the specific purpose of your weapon. Learn more about AR-15 barrels in our article: Choosing an AR15 Barrel - 5 Things to Consider

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$160.85

Our value barrel - 4142 Chromoly steel with an accurate, non-chrome-lined bore. A dependable barrel at a great price. Specifications 4142 Chromoly steel Made for Carbine Length Gas Systems Mil-Spec M4 Barrel Extension with 5.3.1.2 MIL-STD-171 Phosphate Finish Exterior coating -  5.3.1.2 MIL-STD-171 Phosphate Finish 5.56mm Nato chamber Head spaced and magnetic particle inspected 1/2x28 Thread Pitch

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$237.45

An accurate, proven carbine barrel made of Mil Spec MIL-B-11595E Chromoly Vanadium Alloy. Every barrel is Magnetic Particle Inspected and stress relieved to assure quality and durability. Specifications Made for Carbine length gas systems Mil-Spec M4 Barrel Extension with 5.3.1.2 MIL-STD-171 Phosphate Finish 1.2.2.2 MIL-STD-171 Hard Chrome Chamber 1.2.2.2 MIL-STD-171 Hard Chrome Bore 5.56mm Nato chamber All Chambers are Individually...

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$129.99

Starting with one of the world’s most accurate gun barrels, Rosco Manufacturing has evolved into a complete solution for the firearm industry with a clear focus on accuracy. All barrels are made from bar stock, gun barrel quality steel. Specifications: 16" M4 Profile Barrel 4150 CV 1:7" Twist Rate 5.56mm NATO Chamber (also accepts .223 Remington) Threaded 1/2"x28 Carbine Length...

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$172.99

Starting with one of the world’s most accurate gun barrels, Rosco Manufacturing has evolved into a complete solution for the firearm industry with a clear focus on accuracy. All barrels are made from bar stock, gun barrel quality steel. Model: M4Barrel Length: 16"Caliber: 556NATOType: BarrelModel: M4Brand: ESS SolutionsDescription: Chrome LinedType of Barrel: 1:7 twistFinish/Color: Black Phosphate

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$170.99 $189.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  Heavy Taper Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:7 Twist 5.56×45 NATO Chamber Threaded 1/2-28 Midlength gas port .936″ Gas Journal

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$257.85 $311.94

9mm M4 16" Barrel Assembly Specifications: - 16" 9mm M4 Profile AR-15 Barrel - Carbine Gas Port Works with a standard AR-15 upper.

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$241.99 $274.95

Perfect for building your custom .308 upper group. Comes with properly installed barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 18″ Heavy Taper Profile 416 Stainless Steel Bead Blasted Finish 1:10 Twist 308 WIN Chamber Threaded 5/8-24 Rifle Length Gas Port .936″ Gas Journal

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$174.49 $199.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  Medium Taper Profile 416 Stainless Steel Bead Blasted Finish 1:7 Twist 5.56×45 NATO Chamber Threaded 1/2-28 Midlength gas port .750″ Gas Journal

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$168.49 $189.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  M4 Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:7 Twist 5.56×45 NATO Chamber Threaded 1/2-28 Carbine length gas port .750″ Gas Journal

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No reviews
$174.49 $199.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″  Medium Taper Profile 416 Stainless Steel Bead Blast Finish 1:7 Twist 300 AAC Blackout Chamber Threaded 5/8-24 Carbine length gas port .750″ Gas Journal

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$168.49 $189.95

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Specifications:  16.1″  Multi Role Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:7 Twist 300 AAC Blackout Chamber Threaded 5/8-24 Carbine length gas port .750″ Gas Journal

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$241.99 $274.95

Perfect for building your custom .308 upper group. Comes with properly installed barrel extension. All barrel sub-assemblies are properly headspaced. Specifications: 16.1″ Medium Taper Profile 416 Stainless Steel Salt Bath Nitride Finish Inside and Out 1:10 Twist 308 WIN Chamber Threaded 5/8-24 Rifle Length Gas Port .750″ Gas Journal

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$167.99

LBE Unlimited 223 Rem/556NATO Barrel - 16" Barrel 1:9 Twist - Salt Bath Nitride Chamber- 5.56 Contour- M4 Barrel Length- 16in Twist Rate- 1:9 Gas System- Carbine Diameter at Gas Port- .750 Thread Pitch- 1/2×28 Feed Ramps- M4 Material- 4142 Steel Finish- Nitride Weight- 17.9oz Made in The USA

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An accurate, proven mid-length barrel made of Mil Spec MIL-B-11595E Chromoly Vanadium Alloy. Every barrel is Magnetic Particle Inspected and stress relieved to assure quality and durability. Specifications Made for Mid-Length Gas Systems Mil-Spec M4 Barrel Extension with 5.3.1.2 MIL-STD-171 Phosphate Finish 1.2.2.2 MIL-STD-171 Hard Chrome Chamber 1.2.2.2 MIL-STD-171 Hard Chrome Bore 5.56mm Nato chamber All Chambers are Individually Checked...

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Starting with one of the world’s most accurate gun barrels, Rosco Manufacturing has evolved into a complete solution for the firearm industry with a clear focus on accuracy. All barrels are made from bar stock, gun barrel quality steel. Model: M4 Barrel Length: 16" Caliber: 300 Blackout Type: Barrel Model: M4 Type of Barrel: 1:8 Finish/Color: Salt Bath Nitride Finish...